Princy - the reason no one is responding to your inquiries regarding the 2015-16 test dates is that they have not been published yet. ETS usually announces the exact test dates and registration deadlines in mid-June for the following academic year. You can go to ets.org and verify for yourself that the only information posted there now is the generic statement that they plan to offer subject tests in September, October, and April. Check back with ETS in a few months to answer your question.